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  • KD/KO Validated

TAP1 Polyclonal antibody

TAP1 Polyclonal Antibody for IF, IHC, IP, WB, ELISA

Host / Isotype

Rabbit / IgG


human, mouse and More (1)





Cat no : 11114-1-AP


ABCB2, Antigen peptide transporter 1, Peptide supply factor 1, Peptide transporter PSF1, Peptide transporter TAP1, PSF 1, PSF1, RING 4, RING4, TAP1, transporter associated with antigen 1 processing 1

Tested Applications

Positive WB detected inHCT 116 cells, HepG2 cells, mouse skeletal muscle tissue, HeLa cells, mouse spleen tissue, SW480 cells
Positive IP detected inHepG2 cells
Positive IHC detected inhuman pancreas cancer tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
Positive IF detected inHepG2 cells

Recommended dilution

Western Blot (WB)WB : 1:1000-1:6000
Immunoprecipitation (IP)IP : 0.5-4.0 ug for 1.0-3.0 mg of total protein lysate
Immunohistochemistry (IHC)IHC : 1:20-1:200
Immunofluorescence (IF)IF : 1:20-1:200
It is recommended that this reagent should be titrated in each testing system to obtain optimal results.
Sample-dependent, Check data in validation data gallery.

Product Information

11114-1-AP targets TAP1 in WB, RIP, IP, IHC, IF, ELISA applications and shows reactivity with human, mouse samples.

Tested Reactivity human, mouse
Cited Reactivityhuman, mouse, rat
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen TAP1 fusion protein Ag1619
Full Name transporter 1, ATP-binding cassette, sub-family B (MDR/TAP)
Calculated Molecular Weight 81 kDa
Observed Molecular Weight 70-81 kDa
GenBank Accession NumberBC014081
Gene Symbol TAP1
Gene ID (NCBI) 6890
Conjugate Unconjugated
Form Liquid
Purification MethodAntigen affinity purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. 20ul sizes contain 0.1% BSA.

Background Information

TAP1, also known as ABCB2, PSF1 or RING4, is a member of the ATP-binding cassette (ABC) family of transmembrane transporters and is an essential component of the major histocompatability complex (MHC) class I antigen-presenting pathway. TAP is involved in the transport of antigens from the cytoplasm to the endoplasmic reticulum for association with MHC class I molecules. It also acts as a molecular scaffold for the final stage of MHC class I folding. Defects in TAP1 are a cause of bare lymphocyte syndrome type 1 (BLS1). Western blot analysis using this antibody detected a major band around 70-80 kDa in HeLa cells.


Product Specific Protocols
WB protocol for TAP1 antibody 11114-1-APDownload protocol
IHC protocol for TAP1 antibody 11114-1-APDownload protocol
IF protocol for TAP1 antibody 11114-1-APDownload protocol
IP protocol for TAP1 antibody 11114-1-APDownload protocol
Standard Protocols
Click here to view our Standard Protocols




microRNA 125a Regulates MHC-I Expression on Esophageal Adenocarcinoma Cells, Associated With Suppression of Antitumor Immune Response and Poor Outcomes of Patients.

Authors - Luigi Mari

Nat Commun

Proteomic analysis of archival breast cancer clinical specimens identifies biological subtypes with distinct survival outcomes.

Authors - Karama Asleh


Nintedanib enhances the efficacy of PD-L1 blockade by upregulating MHC-I and PD-L1 expression in tumor cells.

Authors - Jingyao Tu

Int J Mol Sci

Antigen Peptide Transporter 1 (TAP1) Promotes Resistance to MEK Inhibitors in Pancreatic Cancers.

Authors - Boya Li

J Immunol

Inducible TAP1 Negatively Regulates the Antiviral Innate Immune Response by Targeting the TAK1 Complex.

Authors - Zhangchuan Xia
  • KD Validated

J Biol Chem

The unfolded protein response (UPR)-activated transcription factor X-box-binding protein 1 (XBP1) induces microRNA-346 expression that targets the human antigen peptide transporter 1 (TAP1) mRNA and governs immune regulatory genes.

Authors - Bartoszewski Rafal R


The reviews below have been submitted by verified Proteintech customers who received an incentive forproviding their feedback.


Adrianna (Verified Customer) (10-24-2022)

This antibody is excellent. I've tried anti TAP1 antibodies from different companies and they all showed brighter bands for contaminants than the TAP1 protein, here I can clearly see my protein of interest.

  • Applications: Western Blot
  • Primary Antibody Dilution: 1:1000
  • Cell Tissue Type: MCF7